"Why will Adobe’s CS4 suite be 64-bit only on Windows? An Apple business decision."

No way, Apple decided not to provide a 64 carbon (even though it was available in the first leopard builds) because they realized that it is the only solution to force big editors like Adobe to switch to Cocoa. Apple wants to go forward and having a legacy of Carbon applications is not going to help. Dropping gradually Carbon is important for Apple, this the sort of decision that Microsoft can't do and that everyone in few years will acknowledge.

"Why is the iPhone only available on AT&T? An Apple business decision."

Granted that Apple should better go for other carriers too, but when they introduced the iPhone, going for a single carrier was certainly the best thing to do as Apple is a new player in the phone market.

"Why couldn’t .Mac users wait until MobileMe was stable to switch their e-mail over? Again, an Apple business decision."

Granted that Apple should have done it differently, Apple has admitted the mistake, Jobs itself has admitted the mistake.

"Furthermore, unlimited plans (except for DataConnect and BlackBerry tethered) cannot be used for any applications that tether the device (through use of, including without limitation, connection kits, other phone/PDA-to-computer accessories, Bluetooth or any other wireless technology) to laptops, PCs, or other equipment for any purpose."